Abstract:
The present invention relates to a booster pump for transferring a high-viscosity liquid. The booster pump for transferring a high-viscosity liquid according to the present invention comprises: a body, which has an actuator mounted on one side, a discharge valve formed on the other side, and a chamber formed therein; a plunger, which is inserted inside the body and generates compression and suction forces by being moved forward and backward by the operation of the actuator; and a filling valve, which is formed on one side of the body and supplies or blocks a fluid into the body by being opened/closed in connection with the forward and backward operation of the plunger, wherein the chamber of the body has a filled liquid transfer path spirally formed on the inner circumferential surface thereof, and the exit of the filled liquid transfer path is formed in proximity to the discharge valve.
Abstract:
A method of operating a reciprocating compressor for a vapour compression system is disclosed. The reciprocating compressor comprises at least two cylinders and at least two unloaders, each unloader can be operated in an idle mode or in an active mode and therefore the reciprocating compressor can run in more than two capacity states. The capacity states alternates periodically between states in such a way that a substantially continuous range of effective capacities can be obtained while the individual cylinders are evenly loaded.
Abstract:
Provided herein are systems that enable proportional air flow delivery control for an air compressor. One system includes a pneumatic air compression system having a flow control member and being adapted to receive inlet air and to compress the inlet air to produce compressed air. The system also includes a pneumatic flow control system including a proportional control valve having a proportionally variable activation state. Varying the activation state of the proportional control valve regulates a pressure acting on the flow control member to regulate the flow of the compressed air produced by the pneumatic air compression system in a variable manner, and further regulates a power demand placed on the engine by the pneumatic air compression system in a variable manner.
Abstract:
L'invention concerne un dispositif de sécurité 1 pour compresseur équipant un circuit de fluide réfrigérant, comprenant au moins une entrée 6 apte à recevoir le fluide réfrigérant et au moins une sortie 7 par laquelle le fluide réfrigérant est apte à sortir dudit dispositif de sécurité 1, ce dernier comprenant : un moyen de détection 3 d'un premier niveau de pression du fluide réfrigérant agencé pour délivrer au compresseur au moins une information électrique relative au niveau de pression détecté, une valve de sécurité 4 alimentée en fluide réfrigérant via le moyen de détection 3 et agencée pour mettre en communication l'entrée 6 avec la sortie 7 quand un deuxième niveau de pression est franchi.
Abstract:
Kompressoreinheit (1) in einer tragbaren Druckluftquelle, welche einen über einen Schubkurbeltrieb (2) angetriebenen Hubkolbenverdichter mit einem in einem Zylinder oszillierend bewegten und einen Kompressionsraum (8) begrenzenden Kolben aufweist, wobei der Zylinder ausgangsseitig durch einen Zylinderkopf (4) mit Auslassventil (6, 7, 8) verschlossenen ist, wobei der Zylinderkopf (4) ein parallel zum Auslassventil (6, 7, 8) angeordnetes separates Überdruckventil (11) für den Kompressionsraum (9) aufweist.
Abstract:
A multistage reciprocating air compressor (10) for compressing air to an elevated pressure level discharge (29) with an intermediate pressure level discharge (30, 30') for use in blow moulding of PET bottles and similar products, having a first, second and third reciprocating piston stages (11, 21, 26), including respective inlet unloading means (16,17; 34; 25), with first, second and third actuating means (31, 32, 33) operable in response to respective sensed discharge pressure levels from the discharges to actuate inlet unloading means (16,17; 34, 25). The elevated pressure level discharge (29) being from said third stage and said intermediate pressure level discharge (30, 30') being from an interstage region between at least one of said first and second stages (11, 21 ) or said second and third stages (21,26).
Abstract:
A reciprocating compressor includes a first cylinder and a second cylinder, first and second suction cutoff unloader valve assemblies, and a controller. The first and second suction cutoff unloader valve assemblies are integral to the compressor and are capable of a rapid cycling to interrupt flow of refrigerant to the first and second cylinders. The controller operates at least one of the first suction cutoff unloader valve assembly or second suction cutoff unloader valve assembly in the rapid cycling and monitor a number of rapid cycles. In another aspect, a multi-stage compressor comprises a lower pressure stage and a higher pressure stage, and at least one suction cutoff unloader valve assembly capable of a rapid cycling to interrupt flow of refrigerant to a lower stage cylinder.
Abstract:
Die Erfindung betrifft eine Kolbenmaschine (1), insbesondere Flüssigkeitskolbenmaschine, mit mehreren Kolbeneinheiten (10, 11, 12), die geometrisch bedingt unterschiedlich große Fördervolumen (V 10 , V 11 , V 12 ) aufweisen und zur diskreten Einstellung eines Gesamtfördervolumens (V G ) der Kolbenmaschine (1) individuell abstellbar sind. Hierbei ist vorgesehen, dass das größere Fördervolumen (V 11 , V 12 ) einer der Kolbeneinheiten (11, 12) jeweils doppelt so groß ist wie das nächst kleinere Fördervolumen (V 10 , V 11 ) einer anderen der Kolbeneinheiten (10, 11).
Abstract:
A vacuum diaphragm pump unit comprises a dimensionally stable diaphragm base (1), a dimensionally stable one-piece diaphragm cover (3) having a bottom area and a side wall (36) that extends around the bottom area and widens towards the exterior, and a one-piece pump diaphragm (2) which has a diaphragm plate (20), a flexible diaphragm piston (21), at least one inlet valve flap (23) and at least one outlet valve flap (24). The diaphragm plate (20) is interposed between the diaphragm base (1) and the diaphragm cover (3). The pump diaphragm (2) and the diaphragm cover (3) are interconnected in a predetermined position with respect to each other via connecting elements (15, 15', 15''). The diaphragm piston (21) extends through the diaphragm base (1) and the diaphragm piston (21) covers a pump chamber (31) of the diaphragm cover (3). The invention is characterized in that more than three connecting elements (15, 15', 15'') are present and are integrally bonded and/or form-locked.
Abstract:
Ein Membransaugpumpenaggregat weist einen formsteifen Membrangestell (1), einen formsteifen einstückigen Membrandeckel (3), welcher eine Pumpkammer (31) mit einem Bodenbereich und einer den Bodenbereich umlaufenden und sich vom Bodenbereich weg nach aussen erweiternden Seitenwand (36) aufweist, und eine einstückige Pumpenmembran (2) auf, welche eine Membranplatte (20), einen flexiblen Membrankolben (21), mindestens eine Einlassventilklappe (23) und mindestens eine Auslassventilklappe (24) aufweist. Die Membranplatte (20) ist zwischen dem Membrangestell (1) und dem Membrandeckel (3) angeordnet und Membrangestell (1), Pumpenmembran (2) und Membrandeckel (3) sind mittels Verbindungselementen (15, 15', 15") in vorgegebener Position zueinander miteinander verbunden. Der Membrankolben (21) durchsetzt dabei das Membrangestell (1) und der Membrankolben (21) überdeckt eine Pumpkammer (31) des Membrandeckels (3). Erfmdungsgemäss sind mehr als drei Verbindungselemente (15, 15', 15") vorhanden, wobei diese einen Material- und/oder Formschluss bilden.